Rename the extracted boost subdirectory to ndnboost
diff --git a/ndnboost/mpl/aux_/preprocessor/sub.hpp b/ndnboost/mpl/aux_/preprocessor/sub.hpp
new file mode 100644
index 0000000..f4ba5d0
--- /dev/null
+++ b/ndnboost/mpl/aux_/preprocessor/sub.hpp
@@ -0,0 +1,65 @@
+
+#ifndef BOOST_MPL_AUX_PREPROCESSOR_SUB_HPP_INCLUDED
+#define BOOST_MPL_AUX_PREPROCESSOR_SUB_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2002-2004
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+// See http://www.boost.org/libs/mpl for documentation.
+
+// $Id: sub.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
+// $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $
+// $Revision: 49267 $
+
+#include <ndnboost/mpl/aux_/config/preprocessor.hpp>
+
+#if !defined(BOOST_MPL_CFG_NO_OWN_PP_PRIMITIVES)
+
+# include <ndnboost/mpl/aux_/preprocessor/tuple.hpp>
+
+#if defined(BOOST_MPL_CFG_BROKEN_PP_MACRO_EXPANSION)
+# include <ndnboost/preprocessor/cat.hpp>
+
+# define BOOST_MPL_PP_SUB(i,j) \
+ BOOST_MPL_PP_SUB_DELAY(i,j) \
+ /**/
+
+# define BOOST_MPL_PP_SUB_DELAY(i,j) \
+ BOOST_PP_CAT(BOOST_MPL_PP_TUPLE_11_ELEM_##i,BOOST_MPL_PP_SUB_##j) \
+ /**/
+#else
+# define BOOST_MPL_PP_SUB(i,j) \
+ BOOST_MPL_PP_SUB_DELAY(i,j) \
+ /**/
+
+# define BOOST_MPL_PP_SUB_DELAY(i,j) \
+ BOOST_MPL_PP_TUPLE_11_ELEM_##i BOOST_MPL_PP_SUB_##j \
+ /**/
+#endif
+
+# define BOOST_MPL_PP_SUB_0 (0,1,2,3,4,5,6,7,8,9,10)
+# define BOOST_MPL_PP_SUB_1 (0,0,1,2,3,4,5,6,7,8,9)
+# define BOOST_MPL_PP_SUB_2 (0,0,0,1,2,3,4,5,6,7,8)
+# define BOOST_MPL_PP_SUB_3 (0,0,0,0,1,2,3,4,5,6,7)
+# define BOOST_MPL_PP_SUB_4 (0,0,0,0,0,1,2,3,4,5,6)
+# define BOOST_MPL_PP_SUB_5 (0,0,0,0,0,0,1,2,3,4,5)
+# define BOOST_MPL_PP_SUB_6 (0,0,0,0,0,0,0,1,2,3,4)
+# define BOOST_MPL_PP_SUB_7 (0,0,0,0,0,0,0,0,1,2,3)
+# define BOOST_MPL_PP_SUB_8 (0,0,0,0,0,0,0,0,0,1,2)
+# define BOOST_MPL_PP_SUB_9 (0,0,0,0,0,0,0,0,0,0,1)
+# define BOOST_MPL_PP_SUB_10 (0,0,0,0,0,0,0,0,0,0,0)
+
+#else
+
+# include <ndnboost/preprocessor/arithmetic/sub.hpp>
+
+# define BOOST_MPL_PP_SUB(i,j) \
+ BOOST_PP_SUB(i,j) \
+ /**/
+
+#endif
+
+#endif // BOOST_MPL_AUX_PREPROCESSOR_SUB_HPP_INCLUDED